HRT VSM-802B Bedienungsanleitung

8 x 2 Video Matrix Switch

With Serial Keypads and Long Cable Compensation

VSM-802B

Hall Research Technologies, Inc.

Order toll-free in the U.S. 800-959-6439

FREE technical support, Call 714-641-6607 or fax 714-641-6698

Mail order: Hall Research Technologies, 1163 Warner Ave., Tustin, CA 92780

Web site: www.hallresearch.com • E-mail: info@ hallresearch.com

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INFORMATION

UMA1007 Reb B

8x2 Video Matrix Switch

TRADEMARKS USED IN THIS MANUAL

Hall Research, HRT, and (logo) are trademarks of Hall

Research Technologies, Inc.

Apple and Macintosh are registered trademarks of Apple Computer, Inc.

IBM is a registered trademark of International Business Machines

Corporation.

SGI is a registered trademark of Silicon Graphics, Inc.

Sun and Sun Microsystems are registered trademarks of Sun Microsystems,

Inc. in the United States and other countries.

Any other trademarks mentioned in this manual are acknowledged to be the

property of the trademark owners.

8x2 Video Matrix Switch

FEDERAL COMMUNICATIONS COMMISSION

AND CANADIAN DEPARTMENT OF COMMUNICATIONS

RADIO FREQUENCY INTERFERENCE STATEMENTS

This equipment generates, uses, and can radiate radio frequency energy

and if not installed and used properly, that is, in strict accordance with

the manufacturer’s instructions, may cause interference to radio

communication. It has been tested and found to comply with the limits

for a Class A computing device in accordance with the specifications in

Subpart B of Part 15 of FCC rules, which are designed to provide

reasonable protection against such interference when the equipment is

operated in a commercial environment. Operation of this equipment in

a residential area is likely to cause interference, in which case the user

at their ownexpense will be required to take whatever measures may

be necessary to correct the interference.

Changes or modifications not expressly approved by the party

responsible for compliance could void the user’s authority to operate

the equipment.

This digital apparatus does not exceed the Class A limits for radio

noise emission from digital apparatus set out in the Radio Interference

Regulation of the Canadian Department of Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques

dépassant les limites applicables aux appareils numériques de la classe

A prescrites dans le Règlement sur le brouillage radioélectrique publié

par le ministère des Communications du Canada.

8x2 Video Matrix Switch

Contents

1. Introduction ....................................................................................... 4

2. Installation and Configuration ........................................................... 5

3. Operation ........................................................................................... 8

3.1 The Switch’s LEDs...................................................................... 8

3.2 Switching with the Keypads ........................................................ 8

3.3 Blanking the Video Output and Keypad Self-Test ...................... 8

4. Troubleshooting................................................................................. 9

4.1 Problem Solving FAQ ................................................................. 9

4.2 Calling Hall Research Technologies.......................................... 10

4.3 Shipping and Packaging ............................................................ 10

5. Specifications................................................................................... 11

6. Addendum ....................................................................................... 12

6.1 Switching with or through a Serial Device................................ 12

6.2 Configuring for Dual-head Display Devices ............................. 13

6.3 Scan Mode ................................................................................. 14

6.4 Blanking the output ................................................................... 15

6.5 Programming the Scan Period for each output .......................... 15

8x2 Video Matrix Switch

1. Introduction

The Model VSM-802B 8 in x 2 out Video Matrix Switch is an ideal tool

for sharing and/or switching between the output of as many as eight video

sources (such as PCs), in order to display or capture that output at two

video destinations (such as monitors). Once you attach all your devices,

you can hook the Switch to the included keypads for full switching control.

The Switch’s features include:

•With its large bandwidth, it can handle even very high resolutions

and refresh rates, up to 1600 x 1280 pixels at up to 85 Hz.

•It includes two serial keypads, so it’s ready to do manual

switching almost right out of the box (you do have to attach the

keypad to the Switch first).

•Because it has a universal power supply, you can plug it in almost

anywhere if you have the right input cord. (And it’s small and

light enough to take almost anywhere!)

•It’s primarily designed to carry VGA/XGA video, but it can

handle separate horizontal and vertical sync, composite sync, and

sync on green, so with the right kinds of cables or adapters it can

accept all sorts of video from all sorts of devices.

•All of its input and output signals are buffered, so you’ll get the

sharpest possible images.

•It can drive video signals as far as 300 ft. (90 m) end-to-end, so

it’s ideal for use in auditoriums, conference halls, and similar

spaces.

•Its front-panel LEDs show you right away which video inputs are

going to which outputs.

•To top it off, it can be operated by pressing a single keypad

button, so anybody can use it without having to be extensively

trained.

The Switch comes with:

•(2) 10-button keypads

•(2) 6-ft. (1.8-m) DB9 male to DB9 female keypad cables

•Power supply

•This manual

8x2 Video Matrix Switch

2. Installation and Configuration

To set up your VSM-802B 8 x 2 Video Matrix Switch system, take these

steps:

Making sure that the Switch is powered off, find its input ports. (These are

the HD15 connectors on its front panel labeled “INPUT 1” through

“INPUT 8.”)

Run cabling from these ports to the video-output ports of the PC CPUs or

other devices that will be providing the Switch’s video input. If all of these

input devices are transmitting VGA/SVGA/XGA-type video signals on

HD15 female connectors, you can use standard VGA video extension

cables such as our product CVGX-xx-MM. Keep in mind that the length of

any of these cables plus the length of any of your monitor/output cables

(see step 2) should not be more than 300 ft. (90 m). You’ll configure the

Switch for the length of your cables in step 3.

If any of your input devices transmit some other type of video signal and/or

use some other type of video connector, you might need special cables or

adapters; call HRT Technical Support.

Figure 2-1. The Switch’s rear-panel components.

The Switch’s output ports are the two HD15 female connectors labeled

“OUT A” and “OUT B” on the Switch’s rear panel. If both of your output

devices are standard VGA or multisync monitors with HD15 male

connectors on their video cables, you can plug them directly into these

ports (if they’ll be placed nearby) or run video-extension cables to them

such as our product CVGX-xx-MF (if they’ll be some distance away).

Keep in mind that the length of any of these cables plus the length of any of

your CPU/input cables (see step 1) should not be more than 300 ft. (90 m).

(You’ll configure the Switch for the length of your cables in step 3.)

If either of your output devices is designed to receive a non-VGA video

signal and/or use a different type of video connector, you might need

special cables or adapters; call HRT Technical Support.

8x2 Video Matrix Switch

1. For each of the two outputs there is an 8-position DIP switch on

the Video Matrix Switch’s rear panel - labeled “GAIN A” for

“OUT A” and “GAIN B” for “OUT B” - that you can use to

control the gain applied to the corresponding input signals. For each

of the eight inputs, calculate the total lengths of the video cables from

the source to each of the two destinations (the devices attached to

OUT A and OUT B). Then set the corresponding switch position (“1”

for input 1 through “8” for input 8 on either GAIN A for OUT A or

GAIN B for OUT B): Move it DOWN if the total length is 100 ft. (30

m) or less, or UP if the total length is over 100 ft. (30 m). (In the UP

setting, extra compensation is added to the signal to make up for the

high-frequency losses typical of longer cabling.)

2. Run the included 6-ft. (1.8-m) DB9 cable from the two included

keypads to the DB9 female connectors labeled “KEYPAD A” and

“KEYPAD B” on the Switch’s rear panel. If you have either

monitor placed father than 6-ft. (1.8 m) from the Switch, you can

use DB9 male to DB9 female extension cable such as CDB9-xx-MF to

run just as far to the keypad, up to the maximum of 300 ft. ( 90 m ) .

3. Plug the output cord of the Switch’s power supply into the

Switch’s 5-pin DIN female power inlet. Plug one end of the power

supply’s input cord into the transformer’s IEC 320 male inlet; plug

the other end of the input cord into a working AC outlet. Your

Video Matrix Switch system is now fully installed, as shown in Figure

3-2 on the next page.

4. Now you can turn on all attached devices. The system should

power up in its last state, with each of the Switch’s outputs

displaying its last selected input. If it does, the system should be

ready for continuous operation. If it doesn’t, check the rear-panel

LEDs to make sure the Switch is ON; check your devices and make

sure they’re ON; and check the cabling and make sure it’s all properly

connected. If everything seems like it should work but the system still

doesn’t, call HRT Technical Support.

8x2 Video Matrix Switch

Figure 3-2. A fully installed Switch system.

High-Density 15-Pin VGA Connector

PIN Function

1 Red

2 Green

3 Blue

4 Not Used

5 Gnd

6 Red Return (Gnd)

7 Green Return (Gnd)

8 Blue Return (Gnd)

9 Key (Not Used)

10 Gnd

11 Gnd

12 SDA (plug-n-play)

13 Horizontal Sync

14 Vertical Sync

15 SCL (plug-n-play)

8x2 Video Matrix Switch

3. Operation

3.1 The Switch’s LEDs

The LEDs on the 8 x 2 Video Matrix Switch’s rear panel, shown in Figure

3-1 at the start of Chapter 2, indicate which of the Switch’s outputs are

displaying the video from which inputs, and which outputs have been

blanked and aren’t showing anything (see Section 3.3) .

There are two rows of eight LEDs, labeled “Channel” and “1” through “8.”

The top row shows which input is selected for “OUT A,” while the bottom

row shows which input is selected for “OUT B.” If no LEDs are lit in an

output port’s row, the output has been blanked and the keypad is in test

mode (see Section 3.3)

3.2 Switching with the Keypads

To switch your output port’s monitor or other destination device to display

a given input, press the number of that input on your keypad. For example,

to display the video from a CPU attached to INPUT 8, press the “8” button.

The LED next to that button will light (and will stay lit until a different port

is selected). Buttons 9 and 10 on the keypad have no switching function;

pressing them will have no effect unless you press both at the same time,

which will blank the output and trigger the keypad’s self-test function (see

Section 3.3).

3.3 Blanking the Video Output and Keypad Self-Test

Pressing both the 9 and 10 buttons simultaneously on one of the Switch’s

keypads will blank the video output controlled by that keypad (the monitor

will go dark). It will also cause that keypad to go into self-test mode and

light all of its LEDs. If you see that any of the LEDs don’t light while a

keypad is in this mode, consider contacting HRT to arrange for the keypad

to be repaired or returned. (A dark LED probably just means that the LED

is defective, but there’s a slim chance that something more serious might be

wrong.) To exit test mode and restore video output of the previously

selected channel, press any button (1 through 8).

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